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The Radio Outburst from GRO J1655-40

Published online by Cambridge University Press:  25 May 2016

R.W. Hunstead ,
D. Campbell-Wilson  and
T. Ye
R.W. Hunstead
Affiliation:
School of Physics, University of Sydney NSW 2006, Australia
D. Campbell-Wilson
Affiliation:
School of Physics, University of Sydney NSW 2006, Australia
T. Ye
Affiliation:
School of Physics, University of Sydney NSW 2006, Australia

Abstract

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Strong variable radio emission from the bright transient X-ray source GRO J1655-40 (X-ray Nova Scorpii 1994) has been detected at 843 MHz with the Molonglo Observatory Synthesis Telescope (MOST). As the hard X-ray intensity from the 1994 August outburst declined the radio output increased rapidly, reaching a peak of nearly 8 Jy some 12 days after the first X-ray peak. VLBI images obtained at this time showed two main components separating with an apparent transverse velocity > c. The evolution of the radio spectrum suggests that the time delay between X-ray and radio emissions is due, at least in part, to opacity effects associated with this expansion.

Type
5 X-ray Binaries
Information
Symposium - International Astronomical Union , Volume 165: Compact Stars in Binaries , 1996 , pp. 369 - 373
Copyright
Copyright © Kluwer 1996 

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